package com.lagou.edu.servlet;

import com.lagou.edu.factory.BeanFactory;
import com.lagou.edu.pojo.Result;
import com.lagou.edu.service.TransferService;
import com.lagou.edu.utils.JsonUtils;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author 应癫
 */
@WebServlet(name = "transferServlet", urlPatterns = "/transferServlet")
public class TransferServlet extends HttpServlet {

  /**
   * 首先从BeanFactory获取到transferService的实例化对象
   */
  private TransferService transferService = (TransferService) BeanFactory.getBean("transferService");

  @Override
  protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    doPost(req, resp);
  }

  @Override
  protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

    // 设置请求体的字符编码
    req.setCharacterEncoding("UTF-8");

    String fromCardNo = req.getParameter("fromCardNo");
    String toCardNo = req.getParameter("toCardNo");
    String moneyStr = req.getParameter("money");
    int money = Integer.parseInt(moneyStr);

    Result result = new Result();

    try {

      // 2. 调用service层方法
      transferService.transfer(fromCardNo, toCardNo, money);
      result.setStatus("200");
    } catch (Exception e) {
      e.printStackTrace();
      result.setStatus("201");
      result.setMessage(e.toString());
    }

    // 响应
    resp.setContentType("application/json;charset=utf-8");
    resp.getWriter().print(JsonUtils.object2Json(result));
  }
}
